Nature Breeze Vickie-Hi Round Toe Over The Knee Slouchy Thigh High Flat Boot - Black PU Synthetic Black and Tan: poly urethane; Leopard: faux suede, synthetic sole Heel measures approx. .25", flat, shaft measures approx. 22" including heel, boot opening approx. 15.5" Non-skid sole and cushioned foot bed True to size, but slightly narrow